Hey guys been a long time since Ive been on here. The last time I was here I had tranny problems to the tune of replaceing with a ford reman that had 40k on it out of a 05 that had rolled.

Ok so things were going well. Then about two weeks ago the trans starting having a delay and a kick in going from park to reverse or park to drive. It doesnt happen everytime you shift. But it happens about 75% of the shifts. All other trans behaviour is totally normal. Nice smooth shifts on a slow accel and on a WOT. I know the snap ring thing was a issue. And it had similar symptoms to mine. Just wondering if anyone has a idea what this could be. I took it to a pretty reputable trans shop in the salt lake area. He drove it with his scanner on did all kinds of shifts I thought for sure the trans would fall out and explode. But she handled all perfectly well. No codes no weird pressure spikes or lows. Just a hard shift from park to drive or park to reverse. some times it will hit and not go in. then it will ease in 1 sec later after the engine kinda revs up a 100 or so revs.
Im going to drain the thing tommarow and change the external filter and drop the pan to inspect for debris. But the fluid on the stick looks and smells like its coming from the bottle. depending on the amount of junk I see Im going to then have it serviced by ford with the heated flush.
Any Other ideas would be awesome. I still have my old unit. Im wondering how hard it would be to rebuild. While im no trans tech Im very mechanically oriented and can follow instructions with the best of them.

P.S. does anyone have a diagram stating which solinoid is which? thanks.

 

Pics of the transmission solenoids in one of my albums.

Hopefully someone else will jump in with more help.

Ford Truck Enthusiasts Forums - bismic's Album: TorqShift

 

I also found this, its a TON easier to read and see. Im thinking about changing the PCA and Reverse solinoid. Weird issue to have when the rest of the tranny behaves like it should.

 

I think you are right that it is one or more sticky solenoids. I have cleared sticky solenoids by changing the fluid. It isn't an immediate fix, it takes some time with the new fluid to work it out. And it isn't a 100% guaranteed fix, but I think the heated flush is worth a shot.

 

im having somewhat of the same problem. occasionally it clunks going into reverse/drive, but im going to try the fluid first. im just going to assume at 116k its never been touched

 

Hey not wanting to hijack the thread....
But when you are in the "tow mode" does the transmission have different shift points in addition to the over drive just being defeated??

Thanks thought I would ask in this thread about trannys

Alan fro San Diego

 

Overdrive is NOT defeated. Yes, the shift point are shifted. They stay in the lower gears longer going up and shift down (to help braking) sooner slowing down.

 

Very good sir, thanks!

 

A clunk as you described it could also be a u-joint or carrier bearing.

 

Yeah, thats what i think it is

 

Well I changed the fluid/filter and dropped pan. I didnt see anything abnormal in the pan. Just a bit of clucth materials on the magnet. And a bit in the pan floating around hardly any. Idound two small metal shavings in the old fluid. Now I might be worried but ....there was only two in 10 qts. Other rhen that it was a bit dirtier then I think it should be with only 10k on the fluid and filters. Im going to do the heated flush in a month and see what this new fluid can do for me until then. / crossesfingers.

..ps. While servcing the trans I found coolant leaking down off the passenger side of the motor. Upon further inspection I found the upgraded blue hose on the oil cooler houseing leaking......wtf are you serious...im about to torch this thing......I.really would if I didnt love it.

 

UPDATE: So I changed fluid and filters last week. After a week of regular driving on the new fluid. It seems to be shifting alot better. It still has a delay here and there, but the clunk into drive and reverse is gone. Im going to continue driving and get the heated flush done in a few weeks.

 

I have the same issue. In addition it shifts out of park into gear quicker when it is cold 32f vs 70f. How can I troubleshoot to determine which solenoids are the ones that are failing?
Thanks!!!

 

Not sure what to do. I know the PCA solinoids go out or get clogged pretty regular. I was about to do this but I thought I would give mark k's suggestion a whirl. You have to drop the valve body or a part of it to change that solinoid. Thats why I decided to try the easier option. First. This transmission was sitting on a palet in a field behind a guys barn totally uncovered to the world for 8 months. He guaranteed it would work or he would Give me back my cash. It worked great for the first 10k then this issue poped up. I think its just clearing out the field gunk. As it seems to be flawless now.

 

Update guys! I didn't realize my f250 has torque drive transmission and there is a filter on the frame rail next to the radiator that needed to be changed . I had local shop do a transmission flush and internal filter and overlooked the external filter. I used compressor impact wrench with 22mm socket to take it off and filter was nasty . Needless to say shift from park to drive or to reverse is back to normal . I have around 85,000 miles on her.